These compressors have a horizontal tank about 30 gallons in size, two wheels at the rear, and a handle to drag it along, making this a portable compressor.
It came with a 1 HP 120 VAC motor.
I suspect there are lots of these Speedaire compressors still in use. Being of the 1970's vintage, I also suspect that this compressor was built a lot better than similarly sized air compressors are today.
This is the forum page for the Speedaire 3Z406 air compressor.
Do you have a problem with your model 3Z406? First please read the existing submissions for answers. If no answer there, please review the troubleshooting pages next for problems and solutions common to many air compressors. The answer to your compressor problem is likely already posted.
If you cannot find a solution on this site already then post your question about only the 3Z406 model using the form below. Please note that questions that have already been answered on this forum cannot be duplicated.
Photos are very helpful if you are asking about differing features on your 3Z406 so upload up to four for each posting.
If you can help someone else with a question already posted, please do so using the comment link on that posting.
Folks, please, if your compressor issue is not related to this specific model, the 3Z406 Speedaire air compressor, then use the general Speedaire forum page or the forum on the ASK page to send in your question. If questions are posted on the wrong page they are automatically deleted. Thanks!
Having an issue with your Speedaire model 3Z406 compressor?
Please see below. You may find a solution to your problem already posted.
what type of oil should i use in the pump on a 3z406
need to know what types of oil I should use in the pump of my 3z406 compressor
Not pumping air
Speed air pumped up to 60lbs one day and now will not pressure up at all?
Speedaire compressor pressure switch failure
The pressure switch on my Speedaire model 3Z406G (1-hp)has failed. I need to replace it but finding the exact replacement part is impossible. I need to …
Speedaire model #3Z406G
The pressure switch on my Speedaire model 3Z406G (1-hp)has failed. I need to replace it but finding the exact replacement part is impossible. I need …
speedair medel 3z406 if it don't stop
what is the maximum pressure before stop may be my automatic switch is in fault if it turn after 125 psi
How many CFM from my Speedaire model 3Z406
Does anyone know how many CFM my Speedaire model 3Z406 compressor will deliver at 40 and 90 PSI? How about the capacity of the tank?
What is the high and low cut off pressure for 3z406 .
What should the high and low cut off pressure be for this model There is nothing under switch cover that states what the high and low number.
Pressure switch is faulty on my 3Z406
Need a recomendation for a new switch
Trips breaker at 60psi
My Speedaire 3Z406 seems to lock up or bog down around 60psi then blows dedicated 20 amp breaker, soon after. Appears to be a pump issue, not necessarily …
Need set of rings for 3Z406C compressor
I have a 3Z406C model I would like to no what I my be able to cross reference to get a set of rings for my pump it been out side for 7-8 year and the …
3Z406 Broken PSI regulator adjustment
I Bought a vitage Speedair compressor model 3Z406, i try it out Love it ! but up to only 50 PSI it turn off, i did try to open the adjustment and …